[post_page_title]Deadly tail[/post_page_title]
It seems unlikely that humans stood a chance against the glyptodon. They fought each other and they actually have a not so secret weapon: their tail. The club on the end of their tail was actually strong and sharp enough to crush a human skull and could easily be a deadly tool.
The only difference between animals and humans is that we are able to build actual weapons in order to hunt, and things like spears were to hunt glyptodons.